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74446 (1999 CT19)
Classification: Main-belt Asteroid          SPK-ID: 2074446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444717399068429 4.9753e-08  
a 3.056846236558009 2.7803e-08 au
q 2.615218342134789 1.592e-07 au
i 5.228621079427292 5.6514e-06 deg
node 121.0602949210404 5.7496e-05 deg
peri 351.6957006579852 6.1235e-05 deg
M 9.433593846542474 1.9682e-05 deg
tp 2458949.345541607807
(2020-Apr-09.84554161)
0.00010654 TDB
period 1952.130367361448
5.34
2.6633e-05
7.292e-08
d
yr
n .1844139131376691 2.516e-09 deg/d
Q 3.498474130981229 3.182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      11707 days (32.05 yr)  
   first obs. used      1988-01-11  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:16:17  

Additional Information
 Earth MOID = 1.63188 au 
 Jupiter MOID = 1.60803 au 
 T_jup = 3.213 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO453157  
diameter diameter 5.524 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.82 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.076   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74446 (1999 CT19)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CT19 = 1988 AV = 2002 RG223 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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